Docol 420LA High Strength Low Alloy Steel (HSLA)
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Docol 420LA steel is a high-strength low-alloy steel, which can be supplied as hot-rolled steel and cold-rolled steel. It is supplied with S420MC based on EN 10149-2:2010 standard.

PRODUCT PARAMETERS

The main alloying elements of HSLA steel include carbon, manganese, molybdenum, chromium and nickel. The nickel varies according to different HSLA steel grades. The proportion and ratio of these elements all play a crucial role in the performance of HSLA steel. Docol 420LA HSLA improves strength while maintaining good toughness, giving it superior performance in withstanding impact and tensile stress. Besides, HSLA steel has lower alloying element content, which is beneficial to the implementation of welding processes. Through reasonable control of alloying element content, HSLA steel can have a certain corrosion resistance, suitable for engineering structures in corrosive environments. Lastly, Docol 420LA HSLA has good plasticity and malleability, which is conducive to the implementation of various forming processes and reduces manufacturing costs.

 

Mechanical Properties

Steel GradeStandardPlatingTest DirectionYield Strength Rp0.2 (MPa)Tensile Strength Rm (MPa)Extension Rate A80( min%)Minimum Bend Inner Diameter for 90 ° Bend
Docol CR420LAVDA239- 100:2016GI, GA*, ZAL420-520480-600171.0xt
Docol HR420LAVDA239- 100:2016UC, Cam thoL420-520480-60018UC 0.5xt bottleGI 1.0xt

 

Chemical Composition

Steel GradePlatingC (max %)Si (max %)Mn(max %)P (max %)S(max %)Al( min%)Ti(max%)Nb(max %)Cu(max %)
Docol CR420LAGI,GA,ZA0.120.501.650.300.0250.0150.0150.100.20
Docol HR420LAUC0.120.501.600.300.0250.0150.0150.090.20
Docol HR420LAGI0.120.501.600.300.0250.0150.0150.100.20

 

Plating

Plating TypePlating GradeStandardSingle-sided coating quality, single-point test (g/m2)Single side thickness, for reference only(μm)
GI40/40VDA239-10040-605.6-8.5
GI50/50VDA239-10050-707.0-9.9
GI60/60VDA239-10060-908.5-12.7
GI70/70VDA239-10070-1009.9-14.1
GI85/85VDA239-10085-11512.0-16.2
GI115/115VDA239-100115-15516.2-21.8
GA40/40VDA239-10040-605.6-8.5
GA50/50VDA239-10050-807.0-11.3
ZA95As required
7-
ZA130As required
10-


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PRODUCT DISPLAY

We adopt high standard production processes, select high-quality steel raw materials, and provide diverse product specifications and models. All steel products have passed strict quality testing, with smooth and even surfaces, precise dimensions, excellent compressive strength, corrosion resistance, and processability. Support customized thickness, length, and special process requirements to meet different usage standards in different scenarios. Clear display of high-definition detailed images and technical parameter tables of the physical object, ensuring transparent and visible quality.

PRODUCT APPLICATION

This product is widely used in the fields of building structures, mechanical manufacturing, automotive parts, energy equipment, and home hardware, and is suitable for scenarios such as load-bearing frames, precision parts, and industrial pipelines. With excellent physical performance and stability, it can easily meet the demands of high strength, high wear resistance, and extreme environments. Support collaboration with engineering teams to provide material selection suggestions and assist clients in efficiently implementing their projects.

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PRODUCT PACKAGING

Adopting a professional industrial packaging solution that is moisture-proof and scratch resistant, each batch of steel is tied and fixed with customized wooden frames/steel strips, combined with anti rust coatings and cushioning pads to ensure zero damage during transportation. Clear product model, batch number, and storage identification on the outer packaging, supporting customized enterprise logos and information labels. Environmentally friendly and recyclable packaging materials practice green concepts, reducing transportation and disassembly costs.

FACTORY DISPLAY

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FAQ

Q: Are You Manufacture or Trade Company?
A: We are the professional manufacturer of steel products located in China. Welcome to contact us and visit our factory before you place orders.

Q: How do you guarantee the quality?
A: We can send free samples to you, we can accept third-party testing.
We also have test certificate, every batch goods will be testing before shipment, and the testing report will delivery to you with your goods.

Q: Can I get free samples?
A: Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.

Q: What is the MOQ?
A: If you are scheduling to place a small quantity order or trial order, feel free to contact us, we can meet your requirements.

Q: Can you OEM or ODM?
A: Yes, we have a strong developing team. The products can be made according to your request

 

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